Dust-removing apparatus



(No Model.) 2 Sheet'sShee.t 1.

0. L. WOOD. DUST REMOVING APPARATUS.

(No' Model) I 2 Sheets-Shet 2.

, 0. L. WOOD.

DUST REMOVING APPARATUS.

Patented July 13, 1886.

Izzvszzzar: Wane A) aia N PETERS, Phdlnulhogrlpllu. Wuhiugton. D. Q

UNITED STATES PATENT OFFICE.

CHAR-LES L. \VOOD, OF OSHKOSH, WISCONSIN.

DUST-.REMOVING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 345,610, dated July 13, 1886.

Application filed March 8, 1886. Serial No. 193,853. (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES L. W001), of Oshkosh, in the county of Vinnebago and State of VVisconsimhave invented new and useful improvements in suction-blast apparatus for removing dust from the surface of doors and other irregular surfaces while being finished by the surface-planer or sand paperi n g machine,of which the following is a specification.

The suction-blast for the removal of dust from wood-workingand other machines is well known; but it fails to remove the fine dust from the reentering angles, corners, and depressions of panels and the like, and hence doors and other like structures come from the surface-finishing machine with the angles and depressions loaded with dust, which must be afterward removed by brushes, and constitutes a considerable nuisance.

The object of my invention is to remove this dust while passing the finishing-machine, and convey it away with the suction-blast, so that the work will leave the machine thoroughly cleansed. To do this it is necessary to disturb and remove the dust from said an 'les and depressions by the direct application of force, which may be exerted by a system of brushes worked in the mouth of the suctiontube; but I prefer to avoid the use of mechanism for this purpose by employing strong jets of air projected directly into said angles and cavities to forcibly blow the dust out therefrom and into the suction-blast, whereby it will be conveyed away.

In the accompanying drawings, Figure 1' ment.

The suction-blast pipe D is provided with a mouth, 6, sufficiently wide to extend over the entire width of the door 0, and it'has within it two or more blast-pipes, F, taking wind from a supplemental blower, G. The pipesF have jet-openings it along their lower surfaces, directed obliquely in different directions downward toward the door C, so that as the door passes along a forcible jet of air will be projected into every angle and depression from one direction or another, and the dust effectually blown out and upward, where it is caught and carried away by the suction-blast.

' I usually attach to the edges of the suctionblast-pipe month 6 strips of rubber g, which hang down and contact the surface of the door so as to close the space there and prevent entrance of the suction-blast through that space.

It is apparent that the relative arrangements of the jet and suction blasts may be great] y varied to suit the peculiarities of the kind of work under treatment without in the least altering the effect produced-to wit, the removal of dust from cavities or entering angles and carrying the same away in the suction-blast, for the purpose of thoroughly holes in various 'directions,'whereby jets of air are projected into the angles and cavities of the article under treatment to blow the dust therefrom into the suction-blast, as set forth. I

2. A. suction-blast fan, A, provided with a duct, D, and hood 6, combined with the blastfan G, with a duct, and connected therewith jet-pipes F under said hood 6, said tube F being provided with jetopenings h, adapted to blow dust from the angles and corners of vided with jet-openings h, directed in various paneled ormolded wood-workinto the suctiondirections toward said table, for the purpose :0 blast, substantially as set forth. set forth.

3. A suction-blast fun, A, provided with A l T 5 duct D, hood 0, and curtain g, and the table CHARLES B, combined with the blast-fan G, provided Witnesses: with a duct, and jet-pipef, arranged between E. B. HAYES, said table and hood, said jet-pipe being pr0- GEO. C. RAMSEY. 

